Siemens SINUMERIK 840D sl Programming Manual

2.6 Spindle motion
2.6.1 Spindle speed (S), spindle direction of rotation (M3, M4, M5)
The spindle speed and direction of rotation values set the spindle in rotary motion and provide
the conditions for chip removal.
;;;
=
Other spindles may be available in addition to the main spindle (e.g. the counterspindle or an
actuated tool on turning machines). As a rule, the main spindle is declared the master spindle
in the machine data. This assignment can be changed using an NC command.
Syntax
S... / S<n>=...
M3 / M<n>=3
M4 / M<n>=4
M5 / M<n>=5
SETMS(<
n>)
...
SETMS
Meaning
S…: Spindle speed in rpm for the master spindle
S<n>=...: Spindle speed in rpm for spindle <n>
Note:
The speed specified with S0=… applies to the master spindle.
Fundamentals
2.6 Spindle motion
NC programming
Programming Manual, 12/2019, 6FC5398-2EP40-0BA0 89

Siemens SINUMERIK 840D sl Specifications

General

Control Type	CNC
Number of Axes	Up to 31
Max Number of Channels	10
Interfaces	Ethernet, PROFIBUS, PROFINET, USB
Interpolation	5-axis interpolation
Operating Temperature	0°C to 45°C
Relative Humidity	Up to 95% (non-condensing)
Display	TFT color display, various sizes
Programming Languages	DIN/ISO
Safety Features	Safety Integrated
PLC	Integrated PLC S7-300
Drive Interface	SINAMICS S120
Data Storage	CF card, USB
Operating System	Windows-based